US2025316781A1PendingUtilityA1

Activated carbon cartridge, expansion tank and battery cooling system

Assignee: MAHLE INT GMBHPriority: Dec 15, 2023Filed: Dec 13, 2024Published: Oct 9, 2025
Est. expiryDec 15, 2043(~17.4 yrs left)· nominal 20-yr term from priority
B01D 53/261B01D 2253/108B01D 2253/106B01D 2257/80B01D 2257/702B01D 53/0415B01D 2253/102H01M 50/317H01M 10/613B01D 2239/0407H01M 10/625Y02E60/10H01M 10/6556H01M 10/60H01M 10/52B01D 39/06
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Claims

Abstract

An activated carbon cartridge for an expansion tank for a battery cooling system is disclosed. The activated carbon cartridge includes a cartridge housing with a body and a cover. A base of the body and the cover (18) are structured to be air-permeable. Activated carbon is disposed in the cartridge housing. A seal is arranged on the base of the body for sealing against an intermediate wall of a container housing of the expansion container. A spring is supported on the lid.

Claims

exact text as granted — not AI-modified
1 . An activated carbon cartridge for an expansion tank for a battery cooling system, comprising:
 a cartridge housing with a body and a cover, wherein a base of the body and the cover are structured to be air-permeable and coated from an inside with a fabric or a fleece,   activated carbon disposed in the cartridge housing,   a seal arranged on the base of the body for sealing against an intermediate wall of a container housing of the expansion tank, and   a spring that is supported on the lid.   
     
     
         2 . The activated carbon cartridge according to  claim 1 , wherein the activated carbon is arranged as a bulk material in the cartridge housing. 
     
     
         3 . The activated carbon cartridge according to  claim 1 , wherein the cover is moveable like a piston in the body. 
     
     
         4 . The activated carbon cartridge according to  claim 1 , wherein the cartridge housing is made of plastic. 
     
     
         5 . An expansion tank for a battery cooling system, comprising:
 a container housing made of plastic, with a first shell and a second shell connected thereto,   a first receptacle disposed in the first shell and/or in the second shell,   a tumble dryer cartridge that is received in a form-fitting manner in the first receptacle,   a first valve, through which air escapes from the expansion tank into an environment when there is an overpressure in the expansion tank,   a second valve, through which fresh air from the environment enters the expansion tank when there is a negative pressure in the expansion tank,   a second receptacle disposed in the first shell and/or in the second shell,   an activated carbon cartridge or a honeycomb-shaped activated carbon monolith or a wound filter with activated carbon embedded therein or a folded filter with activated carbon embedded therein is received in a form-fitting manner in the second receptacle,   the activated carbon cartridge including:   a cartridge housing with a body and a cover, wherein a base of the body and the cover are structured to be air-permeable and coated from an inside with a fabric or a fleece,   the activated carbon disposed in the cartridge housing,   a seal arranged on the base of the body for sealing against an intermediate wall of a container housing of the expansion tank, and   a spring that is supported on the lid.   
     
     
         6 . The expansion tank according to  claim 5 , wherein the first valve is arranged in an intermediate wall which separates the second receptacle from an interior space of the container housing. 
     
     
         7 . The expansion tank according to  claim 5 , further comprising a second spring that preloads the dryer cartridge against the container housing. 
     
     
         8 . The expansion tank according to  claim 5 , wherein at least one of:
 the first shell and/or the second shell is configured as plastic injection-molded part, or   the first shell and the second shell are welded, clipped, screwed, or glued together.   
     
     
         9 . The expansion tank according to  claim 5 , wherein the first shell and/or the second shell is made of polyoxymethylene (POM) or polyketone. 
     
     
         10 . The expansion tank according to  claim 5 , wherein the first shell and/or the second shell comprise glass fibers. 
     
     
         11 . The expansion tank according to  claim 5 , wherein the second valve is arranged in an outer wall of the container housing which separates the first receptacle from the environment. 
     
     
         12 . A battery cooling system, comprising: an expansion tank, the expansion tank including:
 a container housing made of plastic, with a first shell and a second shell connected thereto,   a first receptacle disposed in the first shell and/or in the second shell,   a tumble dryer cartridge that is received in a form-fitting manner in the first receptacle,   a first valve, through which air escapes from the expansion tank into an environment when there is an overpressure in the expansion tank,   a second valve, through which fresh air from the environment enters the expansion tank when there is a negative pressure in the expansion tank,   a second receptacle disposed in the first shell and/or in the second shell,   an activated carbon cartridge or a honeycomb-shaped activated carbon monolith or a wound filter with activated carbon embedded therein or a folded filter with activated carbon embedded therein is received in a form-fitting manner in the second receptacle,   the activated carbon cartridge including:   a cartridge housing with a body and a cover, wherein a base of the body and the cover are structured to be air-permeable and coated from an inside with a fabric or a fleece,   the activated carbon disposed in the cartridge housing,   a seal arranged on the base of the body for sealing against an intermediate wall of a container housing of the expansion tank, and   a spring that is supported on the lid.   
     
     
         13 . The battery cooling system according to  claim 12 , wherein the first valve is arranged in an intermediate wall which separates the second receptacle from an interior space of the container housing. 
     
     
         14 . The battery cooling system according to  claim 12 , further comprising a second spring that preloads the dryer cartridge against the container housing. 
     
     
         15 . The battery cooling system according to  claim 12 , wherein at least one of:
 the first shell and/or the second shell is configured as plastic injection-molded part, and   the first shell and the second shell are welded, clipped, screwed, or glued together.   
     
     
         16 . The battery cooling system according to  claim 12 , wherein the first shell and/or the second shell is made of polyoxymethylene (POM) or polyketone. 
     
     
         17 . The battery cooling system according to  claim 12 , wherein the first shell and/or the second shell comprise glass fibers. 
     
     
         18 . The battery cooling system according to  claim 12 , wherein the second valve is arranged in an outer wall of the container housing which separates the first receptacle from the environment. 
     
     
         19 . The battery cooling system according to  claim 12 , wherein the activated carbon is arranged as a bulk material in the cartridge housing. 
     
     
         20 . The battery cooling system according to  claim 12 , wherein the cover is moveable like a piston in the body.

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